Home / 9,137.36-12,603.04-6,305.80

Finding the Fourth Proportional to 9,137.36, 12,603.04 and 6,305.80

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Solution

The fourth proportional to 9,137.36, 12,603.04 and 6,305.80 is: 8,697.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,137.36 : 12,603.04 = 6,305.80 : x
  2. Step 2: Convert to fraction form
    9,137.36/12,603.04 = 6,305.80/x
  3. Step 3: Cross multiply
    9,137.36x = 12,603.04 × 6,305.80
  4. Step 4: Simplify right side
    9,137.36x = 79,472,249.63
  5. Step 5: Solve for x
    x = 79,472,249.63/9,137.36
  6. Step 6: Final answer
    x = 8,697.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.